net-dns/hash-slinger: Revbump post dep changes

Signed-off-by: Michał Górny <mgorny@gentoo.org>

diff --git a/net-dns/hash-slinger/hash-slinger-2.7.ebuild b/net-dns/hash-slinger/hash-slinger-2.7-r1.ebuild
similarity index 100%
rename from net-dns/hash-slinger/hash-slinger-2.7.ebuild
rename to net-dns/hash-slinger/hash-slinger-2.7-r1.ebuild